• Title/Summary/Keyword: 과학 탐구 실험

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Study on Perception of Science High School Students about Composing Laboratory Reports by Grade (과학 고등학교 학생들의 실험 보고서 작성에 대한 학년별 인식 조사 연구)

  • Song, Shin-Cheol;Shim, Kew-Cheol
    • Journal of Science Education
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    • v.36 no.2
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    • pp.303-312
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    • 2012
  • This study was to find science high school students' perception about composing laboratory reports by grade. The instrument to survey the perception of them consisted of the perception about making a lab report, and the effect of compositing laboratory reports on the scientific concept understanding and the scientific inquiry ability. Subjects were 260 students of four science high schools in Seoul metropolitan city and Kyounggi province. Most of science high school students had a little positive perception about compositing lab reports, but they had very positive perception about the effects of it on the scientific concept understanding and scientific inquiry ability. There was the significant difference between grades, because the 10th grade students showed more positive perception toward compositing lab reports than the 11th graders(p<.05). The results suggested that different educational approaches and teaching strategies be needed for science high school students considering grades.

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The Effects of the Science Writing Heuristic Approach on the Middle School Students' Achievements (중학생의 성취 수준에 따른 탐구적 과학 글쓰기(Science Writing Heuristic) 수업의 효과)

  • Shin, Soyoung;Choi, Aeran;Park, Jong-Yoon
    • Journal of The Korean Association For Science Education
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    • v.33 no.5
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    • pp.952-962
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    • 2013
  • The purpose of this study was to investigate the effects of the Science Writing Heuristic (SWH) approach on the students' summary writing, logical thinking and achievements for the course. Participants in this study were 132 female students from a girls' middle school. The SWH approach was used for two experimental classes and the typical teacher-centered instructional approach was used for two comparative classes. Summary writing test, logical thinking test (GALT) and achievement test for the course were administered before and after the instruction period. Results of this study indicated that the SWH approach was helpful for students in finding big ideas, understanding science concepts, developing logical thinking abilities and doing well in the course. This study also implied that the SWH approach was effective for the low achieving students.

Reconsidering the Meanings of Experiments and Instruments Based on the Analysis of Chemistry Experiments in Textbooks (교과서의 화학 실험 분석을 통해 본 실험과 도구의 의미 재고)

  • Choi, Chui Im;Lee, Sun-Kung
    • Journal of the Korean Chemical Society
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    • v.60 no.4
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    • pp.267-275
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    • 2016
  • Experiment is recognized as an important part in science and science education. Scientists do experiments for verifying or refuting theory and they take many forms to do experiments. One of the central goals of science education is to improve inquiry ability. So we have taken for granted that students engage in authentic inquiry and experiment which scientists carry out to research. But it is not always positive about discussions and opinions what school experiment and its role is in learning science and understanding about science. There is certainly a gap between experiments which scientists and students do even though there is a theoretical basis of school science experiment. In this study, we discussed how scientific inquiry and school inquiry are different, and what it means to use instrument in school science experiment. And as a case, we analyzed chemistry experiments in science textbook and manipulation level of instruments which were handled in chemistry experiments, we shed light on the meanings of experiments and instruments in school science inquiry based on the result of experiments and instruments analysis.

Theoretical Study on the Opportunity of Scientific Argumentation for Implementing Authentic Scientific Inquiry (교실에서의 실질적 과학 탐구를 위한 과학적 논증 기회에 대한 이론적 고찰)

  • Park, Young-Shin
    • Journal of the Korean earth science society
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    • v.27 no.4
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    • pp.401-415
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    • 2006
  • The science education reforms put the emphasis of scientific literacy, so that students can understand how scientific knowledge is constructed through scientific inquiry at schools. However, scientific inquiry at schools has a problem as a cookbook system without the opportunity of developing argumentation, where students could understand how they use evidence to support their theory or vice versa. Teachers are supposed to understand the basic elements, purpose, and definition of scientific inquiry to implement authentic scientific inquiry at schools, then develop the instructional strategies of providing the opportunity of scientific argumentation to meet its needs.

Korean Elementary Students' Understanding about Scientific Inquiry using VASI-E Questionnaire (초등학생의 과학 탐구의 특징에 대한 이해 -VASI-E를 바탕으로-)

  • Yoo, Hye-jin;Park, Jisun;Lederman, Judith S.;Lederman, Norman G.;Bartels, Selina;Jimenez, Juan
    • Journal of The Korean Association For Science Education
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    • v.41 no.2
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    • pp.83-92
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    • 2021
  • The purpose of this study is to investigate elementary school students' understandings about scientific inquiry. Data were collected from 119 elementary students who are in the 4th grade using the Views About Scientific Inquiry questionnaire for elementary students (VASI-E). We also conducted semi-structured interviews of 21 students from 119 students who responded to VASI-E. Students' responses were analyzed as naive, mixed, or informed views on each aspect of scientific inquiry that VASI-E includes. We found that, first, 53.8% of students have mixed views, and 30.3% of students have informed views, and 16% of students have naive views on the knowledge 'investigation begin with a question'. Second, 54.6% of students have naive views, 37.8% of students have mixed views, and 7.6% of students have informed views on the knowledge 'scientists use many methods to answer their questions.' Third, 47.9% of students have informed views, 34.5% of students have naive views, and 17.6% of students have mixed views on 'procedures guided by question asked.' Fourth, 55.5% of students have mixed views, 42% of students have informed views, and only 2.5% of students have naive views on 'conclusions must be consistent with data and explanations come from data and prior knowledge.' Based on the results, implications for teaching and learning scientific inquiry at elementary level in Korea were discussed.

The Effects of Argument-Based Inquiry Using the Science Writing Heuristic (SWH) Approach on Argument Structure in Students' Writing (학생들의 글쓰기에 나타난 논의구조에 미치는 탐구적 과학 글쓰기 활동의 효과 분석)

  • Jang, Kyung-Hwa;Nam, Jeonghee;Choi, Aeran
    • Journal of The Korean Association For Science Education
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    • v.32 no.7
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    • pp.1099-1108
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    • 2012
  • The purpose of this study was to examine the effects of argument structure on students' writing in implementation of argument-based inquiry using the Science Writing Heuristic (SWH) approach. Participants of this study were 108 8th grade students (three classes). Two classes (68 students) were assigned to an experimental group, and the other class (35 students) was assigned to a comparative group. The experimental group was taught argument-based inquiry using the Science Writing Heuristic (SWH) approach, while the comparative group was taught with the traditional teaching strategy. After implementing this program, the two groups were asked to write summaries using structured argumentation in their writing. The result of this study showed that the experimental group used better argument structure and multimodal representation such as pictures, graphs and examples in evidence than the comparative group. The quality of evidence used in the students' writing was different between two groups. Students of the comparative group only listed fragments of science concepts for evidence to support their claims, but students of the experimental group explained science concepts by giving specific examples. The findings show that argument-based inquiry using the SWH approach was effective on argument structure in students' writing.

The effect of practicing the authentic open inquiry on compositions of laboratory reports (학생들의 보고서 쓰기에 대한 개방적 참탐구 활동 수행의 효과)

  • Kim, Mi-Kyung
    • Journal of The Korean Association For Science Education
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    • v.29 no.8
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    • pp.848-860
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    • 2009
  • This study examined the characteristics of scientists' writing on the laboratory reports written in the authentic open inquiry, and explored the possibility that the class discussion after the inquiries could influence the laboratory report writing. The samples were 131 10th graders in a science high school in Seoul. The control group (n=45) practiced traditional school science inquiries, the experimental group 1 (n=43) practiced the authentic open inquiries, and the experimental group 2 (n=43) practiced the authentic open inquiries and the class discussion after the laboratory activities. Their laboratory reports were analyzed into three parts - prediction (prediction with background and apposite description), data analysis (data transformation and critical analysis), and conclusion (objective description based on evidence). The frequency of the characteristics of scientist's writing in the experimental group was higher than the control group. Particularly, the differences of the prediction with background (p<.01) and the critical analysis of data (p<.05) were statistically significant. However, the frequency of writing the conclusion based on evidence was very low in all of the three groups. The result from comparing descriptions of reports showed that the writing prediction in experimental groups were more elaborate, and the data transformation in experimental groups were more correct, and the evaluation to data in experimental groups were more critical than the control group. And the descriptions of the critical evaluation to data and the finding flaw in methods were found in experimental groups 2, indicating that the class discussion can stimulate students' scientific thinking.

Analysis of the Scientific Inquiry Problem Generated by the Scientifically-Gifted in Ill and Well Inquiry Situation (구조화 정도가 다른 탐구 상황에서 과학영재들이 생성한 과학탐구문제 비교 분석)

  • Ryu, Si-Gyeong;Park, Jong-Seok
    • Journal of The Korean Association For Science Education
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    • v.28 no.8
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    • pp.860-869
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    • 2008
  • The purpose of this study is to suggest an instructional direction for improving scientific inquiry problem-finding ability of the scientifically-gifted. For this purpose, this study has made an in-depth analysis of the scientific inquiry problems generated by the scientifically-gifted in Problem-Finding Activity in Ill-structured Inquiry Situation (PFAIIS) and Problem-Finding Activity in Well-structured Inquiry Situation (PFAWIS). The results of this study turned out to be as follows: First, most of the problems generated in PFAIIS and PFAWIS could be categorized into seven types (measurement, method, cause, possibility, what, comparison, relationship) according to the inquiry objectives, while the frequency of each type shown in each inquiry objective was a little different. Second, the frequency of scientific concepts stated in inquiry problem was more in PFAWIS than in PFAIIS. But the scientific concepts were shown more diversely in PFAIIS than in PFAWIS. Therefore, results of this study have the following educational implications. First, it is necessary to offer various opportunities of problem-finding activity under ill-structured scientific Inquiry situation. Second, it is needed to emphasize that a new inquiry problem can be found out even during general scientific experiment and frequently to discuss inquiry problems generated during an experiment. Third, it is needed to encourage the scientifically-gifted to generate a scientific inquiry problem based on at least more than seven types.

Analysis of Inquiry Activity in the Chemistry Part of Middle School Science Textbook (중학교 과학 교과서중 화학 부분의 탐구활동 분석)

  • Lee, Bong Hun;Ha, Young Sook
    • Journal of the Korean Chemical Society
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    • v.43 no.2
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    • pp.225-230
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    • 1999
  • The inquiry activities closely related to chemistry which were presented in the 4 middle school science textbooks were compared and analyzed. The total volume of chemistry part was 64.8 pages (22.3%), which were the smallest one in the four categories of science. The total numbers of inquiry activities related to chemistry were 171; 59 for the first grade, 47 for the second, and 65 for the third grade and those were composed of 29 observations, 20 measurements, 113 experiments, 9 data explanations, no investigation and discussion. Therefore, the major inquiry activity was experiment (66.7%) and this maldistribution will need to be improved.

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Science Teachers' Actual and Preferred Cases of Assessment in 'Scientific Inquiries in History' of Science Inquiry Experiment (과학탐구실험의 '역사 속의 과학 탐구'에서 과학교사의 평가 실태와 평가 지향 조사)

  • Minhwan, Kim;Dahae, Park;Taehee, Noh
    • Journal of The Korean Association For Science Education
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    • v.42 no.6
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    • pp.597-610
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    • 2022
  • In this study, we investigated actual cases of assessment science teachers conducted and the cases they preferred in a typical situation based on the curriculum in the context of 'Scientific Inquiries in the History' of Scientific Inquiry Experiment. A questionnaire composed of descriptive questions was developed and a survey was conducted with 70 science teachers with experience in teaching 'Scientific Inquiries in History'. Interviews were conducted with eight of them. The assessment cases were analyzed in terms of the assessment areas and assessment methods, and the results were compared. The analyses of the results revealed that 'scientific inquiry ability' accounted for the highest ratio of the assessment areas in the actual cases of assessment. There were few cases that assessed the core concepts presented in the curriculum, 'the nature of science' and 'scientists' inquiry methods'. The assessment methods were greatly biased toward the report method and various assessment methods were not used. In preferred cases of assessment, the ratio of cases that assessed the core concept increased slightly, however the frequencies remained at a low. As for the assessment methods in preferred cases of assessment, the measurement methods decreased, the performance methods increased, and the informal methods which were not shown in the actual cases appeared. However various assessment methods were still not used. The causes of the survey results were analyzed based on the opinions of the teachers who participated in the interviews. Based on above results, plans to actively conduct NOS assessments in Scientific Inquiry Experiment are discussed.